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» Engineering Shortest Path Algorithms
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STACS
2010
Springer
14 years 2 months ago
Log-space Algorithms for Paths and Matchings in k-trees
Reachability and shortest path problems are NL-complete for general graphs. They are known to be in L for graphs of tree-width 2 [14]. However, for graphs of treewidth larger than ...
Bireswar Das, Samir Datta, Prajakta Nimbhorkar
INFOCOM
2010
IEEE
13 years 6 months ago
Limitations and Possibilities of Path Trading between Autonomous Systems
Abstract—When forwarding packets in the Internet, Autonomous Systems (ASes) frequently choose the shortest path in their network to the next-hop AS in the BGP path, a strategy kn...
Yuval Shavitt, Yaron Singer
SIGMOD
2009
ACM
198views Database» more  SIGMOD 2009»
14 years 8 months ago
Monitoring path nearest neighbor in road networks
This paper addresses the problem of monitoring the k nearest neighbors to a dynamically changing path in road networks. Given a destination where a user is going to, this new quer...
Zaiben Chen, Heng Tao Shen, Xiaofang Zhou, Jeffrey...
LATIN
1998
Springer
13 years 12 months ago
Short and Smooth Polygonal Paths
Abstract. Automatic graph drawers need to compute paths among vertices of a simple polygon which besides remaining in the interior need to exhibit certain aesthetic properties. Som...
James Abello, Emden R. Gansner
STOC
2009
ACM
155views Algorithms» more  STOC 2009»
14 years 8 months ago
A nearly optimal oracle for avoiding failed vertices and edges
We present an improved oracle for the distance sensitivity problem. The goal is to preprocess a directed graph G = (V, E) with non-negative edge weights to answer queries of the f...
Aaron Bernstein, David R. Karger